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ACXRP
The National Council on Radiation Protection and Measurements (NCRP), formerly the National Committee on Radiation Protection and Measurements, and before that the Advisory Committee on X-Ray and Radium Protection (ACXRP), is a U.S. organization. It has a congressional charter under Title 36 of the United States Code, but this does not imply any sort of oversight by Congress; NCRP is not a government entity. History The Advisory Committee on X-Ray and Radium Protection was established in 1929. Initially, the organization was an informal collective of scientists seeking to proffer accurate information and appropriate recommendations for radiation protection. In 1946, the organization changed its name to the National Committee on Radiation Protection and Measurements. In 1964, the U.S. Congress The United States Congress is the legislative branch of the federal government of the United States. It is a bicameral legislature, including a lower body, the U.S. House of Repres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congressional Charter
A congressional charter is a law passed by the United States Congress that states the mission, authority, and activities of a group. Congress has issued corporate charters since 1791 and the laws that issue them are codified in Title 36 of the United States Code. The first charter issued by Congress was for the First Bank of the United States. The relationship between Congress and an organization so recognized is largely symbolic, and is intended to lend the organization the legitimacy of being officially sanctioned by the U.S. government. Congress does not oversee or supervise organizations it has so chartered, aside from receiving a yearly financial statement. Background Until the District of Columbia was granted the ability to issue corporate charters in the late 1800s, corporations operating in the District required a congressional charter. With few exceptions, most corporations since created by Congress are not federally chartered but are simply created as District of Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Title 36 Of The United States Code
The United States Code is the official compilation of the Federal laws of a general and permanent nature that are currently in force. Title 36 covers "Patriotic and National Observances, Ceremonies, and Organizations." Parts Subtitle I: Patriotic and National Observances and Ceremonies Part A: Observances and Ceremonies *Chapter 1: Patriotic and National Observances **§ 101. American Heart Month **§ 102. Asian/Pacific American Heritage Month **§ 103. Cancer Control Month **§ 104. Carl Garner Federal Lands Cleanup Day **§ 105. Child Health Day **§ 106. Constitution Day and Citizenship Day **§ 107. Columbus Day **§ 108. Constitution Week **§ 109. Father's Day **§ 110. Flag Day **§ 111. Gold Star Mother's Day **§ 112. Honor America Days **§ 113. Law Day, U.S.A. **§ 114. Leif Erikson Day **§ 115. Loyalty Day **§ 116. Memorial Day **§ 117. Mother's Day **§ 118. National Aviation Day **§ 119. National Day of Prayer **§ 120. National Defense Transporta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Congress
The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, U.S. House of Representatives, and an Upper house, upper body, the United States Senate, U.S. Senate. They both meet in the United States Capitol in Washington, D.C. Members of Congress are chosen through direct election, though vacancies in the Senate may be filled by a Governor (United States), governor's appointment. Congress has a total of 535 voting members, a figure which includes 100 United States senators, senators and 435 List of current members of the United States House of Representatives, representatives; the House of Representatives has 6 additional Non-voting members of the United States House of Representatives, non-voting members. The vice president of the United States, as President of the Senate, has a vote in the Senate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiation Protection
Radiation protection, also known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this". Exposure can be from a source of radiation external to the human body or due to internal irradiation caused by the ingestion of radioactive contamination. Ionizing radiation is widely used in industry and medicine, and can present a significant health hazard by causing microscopic damage to living tissue. There are two main categories of ionizing radiation health effects. At high exposures, it can cause "tissue" effects, also called "deterministic" effects due to the certainty of them happening, conventionally indicated by the unit Gray (unit), gray and resulting in acute radiation syndrome. For low level exposures there can be statistically elevated risks of radiation-induced cancer, called "stochastic effects" due to the uncertainty of them ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiation Health Effects Research
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes: * ''electromagnetic radiation'' consisting of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) * ''particle radiation'' consisting of particles of non-zero rest energy, such as alpha radiation (α), beta radiation (β), proton radiation and neutron radiation * '' acoustic radiation'', such as ultrasound, sound, and seismic waves, all dependent on a physical transmission medium * ''gravitational radiation'', in the form of gravitational waves, ripples in spacetime Radiation is often categorized as either '' ionizing'' or '' non-ionizing'' depending on the energy of the radiated particles. Ionizing radiation carries more than 10 electron volts (eV), which is enough to ionize atoms and molecules and break chemical bonds. This is an important distinction due to the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiology Organizations
Radiology ( ) is the medical specialty that uses medical imaging to diagnose diseases and guide treatment within the bodies of humans and other animals. It began with radiography (which is why its name has a root referring to radiation), but today it includes all imaging modalities. This includes technologies that use no ionizing electromagnetic radiation, such as ultrasonography and magnetic resonance imaging (MRI), as well as others that do use radiation, such as computed tomography (CT), fluoroscopy, and nuclear medicine including positron emission tomography (PET). Interventional radiology is the performance of usually minimally invasive medical procedures with the guidance of imaging technologies such as those mentioned above. The modern practice of radiology involves a team of several different healthcare professionals. A radiologist, who is a medical doctor with specialized post-graduate training, interprets medical images, communicates these findings to other physicia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Health Care-related Professional Associations Based In The United States
Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the human body, absent of disease, pain (including mental pain), or injury. Health can be promoted by encouraging healthful activities, such as regular physical exercise and adequate sleep, and by reducing or avoiding unhealthful activities or situations, such as smoking or excessive stress. Some factors affecting health are due to individual choices, such as whether to engage in a high-risk behavior, while others are due to structural causes, such as whether the society is arranged in a way that makes it easier or harder for people to get necessary healthcare services. Still, other factors are beyond both individual and group choices, such as genetic disorders. History The meaning of health has evolved over time. In keeping with the biomedical perspective, early definit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patriotic And National Organizations Chartered By The United States Congress
Patriotism is the feeling of love, devotion, and a sense of attachment to one's country or state. This attachment can be a combination of different feelings for things such as the language of one's homeland, and its ethnic, cultural, political, or historical aspects. It may encompass a set of concepts closely related to nationalism, mostly civic nationalism and sometimes cultural nationalism. Terminology and usage An excess of patriotism is called '' chauvinism''; another related term is '' jingoism''. The English word "patriot" derived from "compatriot", in the 1590s, from Middle French in the 15th century. The French word's and originated directly from Late Latin "fellow-countryman" in the 6th century. From Greek "fellow countryman", from "of one's fathers", "fatherland". The term ''patriot'' was "applied to barbarians who were perceived to be either uncivilized or primitive and who had only a common Patris or fatherland." The original European meaning of ''pat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Organizations Established In 1929
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which study the physical world, and the social sciences, which study individuals and societies. While referred to as the formal sciences, the study of logic, mathematics, and theoretical computer science are typically regarded as separate because they rely on deductive reasoning instead of the scientific method as their main methodology. Meanwhile, applied sciences are disciplines that use scientific knowledge for practical purposes, such as engineering and medicine. The history of science spans the majority of the historical record, with the earliest identifiable predecessors to modern science dating to the Bronze Age in Egypt and Mesopotamia (). Their contributions to mathematics, astronomy, and medicine entered and shaped the Greek natural philo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
